CN202165942U - A modular high-power LED street lamp structure - Google Patents

Abstract

The utility model relates to a modular high-power LED street lamp structure. The modular high-power LED street lamp structure includes an LED street lamp bracket, an LED street lamp module and a driving power supply. The composition of the LED street light module includes: a radiator, a multi-curved reflector, an MCPCB board, a plastic transparent cover, a rubber gasket and a plastic inner shell. The installation method between the various parts of the LED street light module is: the heat-conducting end of the MCPCB board and the radiator are tightly bonded with heat-conducting silica gel, and fixed with flat head screws; the LED array is welded on the MCPCB board; the plastic cover is fixed on the MCPCB board by countersunk head screws On; the reflector is installed on the plastic cover through fixing pins; there is a groove on the edge of the radiator, which is used to place the rubber waterproof gasket, and the plastic transparent cover and the edge of the radiator are tightly fitted. The modular LED street lamp structure improves the heat dissipation performance of the LED street lamp, which is convenient for overhaul and maintenance, and the assembly of different numbers of LED street lamp modules is suitable for road lighting under different lighting power requirements.

Description

A modular high-power LED street lamp structure

technical field

The utility model belongs to the field of lighting fixture design, in particular to a modular high-power LED street lamp structure.

Background technique

As a new type of energy-saving and environment-friendly light source, LED has the advantages of high light efficiency, long life, low voltage, etc. LED is also more and more used in the field of road lighting. However, the high power of the LED chip also brings heat dissipation problems. At present, the heat dissipation of high-power LED street lamps is generally not good, resulting in serious light decay of the lamps and affecting the service life of the LED street lamps; Dustproof puts forward higher requirements, and there is still the problem of aging when placed outdoors for a long time. Many existing high-power LED street lamps adopt the method of soldering and installing all LEDs on a large MCPCB board. If the LED is damaged or the driver needs to For maintenance, the entire lamp needs to be disassembled, which is inconvenient for maintenance.

In view of the above reasons, in the field of high-power LED road lighting, it is especially important to carry out reasonable and effective heat dissipation design, optical design and mechanical design for LED lamps. The utility model designs the radiator, optical device and dust-proof and waterproof structure of the LED module for the high-power LED street lamp module, and the optimized design of the radiator improves the heat dissipation performance of the LED street lamp module and improves the service life of the LED street lamp module; modularization The unique design is conducive to the installation and maintenance of lamps, which greatly saves labor costs.

Contents of the invention

The purpose of the utility model is to provide a modular LED street lamp structure, which reduces the thermal resistance of the LED street lamp module through direct contact between the radiator and the MCPCB board, significantly improves the overall heat dissipation effect of the LED module, and prolongs the service life of the LED street lamp.

A modular high-power LED street lamp structure proposed by the utility model is composed of an LED street lamp drive module 9 and an LED street lamp module 10. The LED street lamp drive module 9 is connected to the LED street lamp module 10 respectively; The inner shell 3, the plastic transparent cover 6, the LED chip 4, the reflector 5 and the MCPCB board 7 are composed, several LED chips 4 are fixed on the MCPCB board 7 in series, the radiator 1 is fixed on the back of the MCPCB board 7, and the MCPCB board 7 The heat-conducting end of the board 7 is bonded to the heat sink 1 through heat-conducting silica gel; the plastic inner shell 3 is covered outside the serial LED chips 4 and fixed on the MCPCB board 7, and the reflector 5 is mounted on the plastic inner shell 3 through fixed pins The plastic transparent cover 6 is fixed outside the radiator 1, and the radiator 1 has grooves around it, and the plastic transparent cover 6 is positioned in the groove around, and the rubber waterproof gasket 2 is placed in the groove to play a waterproof and dustproof effect.

In the utility model, the reflector 5 adopts a multi-curved reflector to form uniform illumination.

In the utility model, the multi-curved reflector is composed of a multi-curved reflector unit, and the reflective surface of the multi-curved reflector unit is stitched by a plurality of elliptical surfaces and spherical surfaces, and the stitching is smooth to avoid glare. Each multi-curved reflector unit has a groove corresponding to the light source welding position of each LED chip.

In the present utility model, the LED street lamp module 10 is installed on the LED street lamp bracket 8 .

The utility model is combined into one LED street lamp module, and then a plurality of LED street lamp modules are combined into an LED street lamp group in a parallel manner to meet a wide range of road illumination requirements; since the heat dissipation of the LED street lamp module and optical devices are installed together, It is a relatively independent working unit. Users can install different numbers of LED street lamp modules according to the actual road lighting power requirements. Compared with traditional LED street lamps, this design is more convenient for maintenance personnel to repair and maintain. If a certain LED is damaged, only the corresponding LED module needs to be disassembled, which avoids dismantling the entire lamp and greatly saves labor costs. Moreover, by optimizing the design of parameters such as the height and interval of the heat sink of the heat sink, the heat dissipation effect of the LED street lamp is improved, and the weight and heat dissipation effect of the LED module are optimized.

The utility model directly welds the MAPCB board on the radiator, which greatly reduces the thermal resistance of the LED street lamp module, reduces the light decay of the LED street lamp, and prolongs the service life of the LED street lamp; Waterproof and dustproof grade.

The multi-curved reflector of modular LED street lamp is mainly composed of three parts: multi-curved reflector array, bracket and mounting pins. The multi-curved reflector array is composed of multi-curved reflector units, and each multi-curved reflector unit has a groove corresponding to the welding position of the LED light source. The multi-curved reflector unit reflects the LED light to the road through a set of opposite reflectors. The reflective surface of the multi-curved reflector unit is stitched by a plurality of ellipsoidal and spherical surfaces, and the stitching is smooth to avoid glare.

The composition of the modular high-power LED street lamp proposed by the utility model is as follows:

(1) A heat sink, the height and interval of the heat sink are obtained through simulation, and the MCPCB board is fixed on it, which is used for heat dissipation of the LED street lamp module;

(2) A multi-curved reflector, the reflective surface is composed of multiple ellipsoidal and spherical surfaces, the surface of the reflective surface is coated with bright aluminum, and the LED light is projected onto the road surface to provide uniform road lighting;

(3) An MCPCB board with pads for multiple LED chips, the reverse side is bonded to the heat sink, and has dual functions of heat conduction and conduction;

(4) A plastic transparent cover and a rubber gasket, the two are used together to ensure the waterproof and dustproof performance of the LED street light module;

(5) A plastic inner shell is installed between the reflector and the MCPCB board to make the LED street light module more beautiful.

(6) An LED street light bracket is used to install and fix multiple LED street light modules. The user determines the number of LED street light modules according to the actual lighting power.

(7) An LED street lamp driver module provides DC drive for multiple LED street lamp modules to ensure the normal operation of LED street lamps.

Description of drawings

Figure 1 is an exploded view of the LED street lamp module.

Fig. 2 is a structural diagram of the heat sink of the LED street lamp module.

Fig. 3 is a structural diagram of the reflector of the LED street lamp module.

Figure 4 is the rubber waterproof gasket of the LED street light module.

Fig. 5 is a schematic diagram of an LED street lamp combined with a plurality of LED street lamp modules.

Numbers in the figure: 1 is radiator, 2 is rubber waterproof gasket, 3 is plastic inner shell, 4 is LED chip, 5 is reflector, 6 is plastic transparent cover, 7 is MCPCB board, 8 is LED street light bracket, 9 is LED street lamp driving module, 10 is an LED street lamp module.

Specific implementation method

Below in conjunction with accompanying drawing and example, the utility model is described in further detail.

Referring to Figures 1 to 5, according to the technical solution of the present invention, the LED street lamp is composed of an LED street lamp driving module 9 and a plurality of LED street lamp modules 10, and the LED street lamp driving module 9 and the LED street lamp modules 10 are fixedly installed on the LED street lamp bracket 8 ,As shown in Figure 6. A single LED street lamp module 10 consists of seven parts, including a radiator 1, a rubber waterproof gasket 2, a plastic inner shell 3, an LED chip 4, a reflector 5, an MCPCB board 7 and a plastic transparent cover 6, as shown in Figure 2 . The installation and fixing methods between the various components of the LED street lamp module 10 are as follows: the heat-conducting end of the MCPCB board 7 is closely bonded to the heat sink 1 with heat-conducting silica gel, and fixed with flat-head screws; multiple LED chips 4 are welded on the MCPCB in parallel. on the board 7; the plastic inner shell 3 is fixed on the MCPCB board 7 by countersunk head screws; the reflector 5 is installed on the plastic inner shell 3 through fixing pins; there is a groove on the edge of the radiator 1 for placing a rubber waterproof gasket 2. The plastic transparent cover 6 is closely attached to the edge of the radiator 1 to meet the waterproof and dustproof requirements of the LED street lamp.

Figures 2 to 4 show a radiator 1, a reflector 5 and a rubber waterproof gasket 2, respectively. In order to improve the heat dissipation effect of the radiator 1 and control the weight of the LED street lamp module at the same time, the height, number and spacing of the radiator fins of the radiator 1 are optimized through simulation; Made with smooth seams to avoid glare and finished in bright aluminum. According to the luminous characteristics of the LED chip, the reflector 5 has a reflective surface that is protruding in the middle and concave on both sides, which is beneficial to reduce the illuminance at the center of the illuminated surface, improve the uniformity of illuminance on the road surface, and avoid the "zebra crossing" in road lighting effect.

In addition, users can determine the number of LED street lamp modules according to their own requirements. As shown in FIG. Compared with traditional LED street lights, the modular design is more convenient for maintenance personnel to repair and maintain. If there is any LED damage during use, only the corresponding LED module needs to be disassembled, which avoids dismantling the entire lamp and greatly saves labor costs.

Claims (4)

1. A modular high-power LED street lamp structure is characterized in that it is made up of an LED street lamp driver module (9) and an LED street lamp module (10), and the LED street lamp driver module (9) is connected to the LED street lamp module (10) respectively; The module (10) is composed of a radiator (1), a plastic inner shell (3), a plastic transparent cover (6), an LED chip (4), a reflector (5) and an MCPCB board (7), and several LED chips (4 ) is fixed on the MCPCB board (7) in series, the heat sink (1) is fixed on the back side of the MCPCB board (7), and the heat conducting end of the MCPCB board (7) is bonded to the heat sink (1) through thermal silica gel; plastic The inner shell (3) is covered outside the LED chips (4) connected in series, and is fixed on the MCPCB board (7), and the reflector (5) is installed on the plastic inner shell (3) through fixing pins; the plastic transparent outer cover (6 ) is fixed outside the radiator (1), the radiator (1) has a groove around it, and the plastic transparent cover (6) is located in the groove around it, and the rubber waterproof gasket (2) is placed in the groove. 2. The modular high-power LED street lamp structure according to claim 1, characterized in that the reflector (5) is a multi-curved reflector. 3. The modular high-power LED street lamp structure according to claim 1, wherein the multi-curved reflector is composed of a multi-curved reflector unit, and the reflective surface of the multi-curved reflector unit is composed of a plurality of ellipsoidal surfaces and spherical surfaces Made of stitching, the stitching is smooth to avoid glare; each multi-curved reflector unit has a groove, corresponding to the light source welding position of each LED chip. 4. The modular high-power LED street lamp structure according to claim 1, characterized in that the LED street lamp module (10) is installed on the LED street lamp bracket (8).

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